\documentclass{standalone}
\usepackage{tikz}
\usepackage{ctex,siunitx,ninecolors}
\setCJKmainfont{Noto Serif CJK SC}
\usepackage{tkz-euclide}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{circuitikz}
\usetikzlibrary{patterns, calc}
\usetikzlibrary {decorations.pathmorphing, decorations.pathreplacing, decorations.shapes}
\ctikzset{bipoles/length=1cm}
\begin{document}
\small
\begin{circuitikz}[>=latex, scale=1,european]
  \useasboundingbox(-1.0,-1.7)rectangle(1.5,1.7);
\draw (0,-0.3)--(0,-1.25)--(1,-1.25)--(1,-0.8) to [american inductor,name=xq1] (1,0.8)--(1,1.25)-- (0,1.25)--(0,0.3);
\draw(-0.5,0.3)node[above]{\tiny$+$}--(0.5,0.3)node[above]{\tiny$+$}(-0.5,-0.3)node[below]{\tiny$-$}--(0.5,-0.3)node[below]{\tiny$-$};
\foreach \x in {0.4,0.2,0,-0.2,-0.4}{\draw[red6,->](\x,0.3)--(\x,-0.3);}
\end{circuitikz}
\end{document}